/**
 * Copyright (c) 2010 Simple Graph Tools contributors. All rights reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * $Id$
 */
package org.sgt.coredef;


/**
 * <!-- begin-user-doc -->
 * A representation of the model object '<em><b>Textual Description</b></em>'.
 * <!-- end-user-doc -->
 *
 * <!-- begin-model-doc -->
 * <p>
 * The only core level concrete implementation of a {@link Description}. It allows users to create textual descriptions in various languages.
 * For now no particular language parsers are delivered.
 * </p>
 * <!-- end-model-doc -->
 *
 * <p>
 * The following features are supported:
 * <ul>
 *   <li>{@link org.sgt.coredef.TextualDescription#getExpression <em>Expression</em>}</li>
 *   <li>{@link org.sgt.coredef.TextualDescription#getLanguage <em>Language</em>}</li>
 * </ul>
 * </p>
 *
 * @see org.sgt.coredef.CoredefPackage#getTextualDescription()
 * @model
 * @generated
 */
public interface TextualDescription extends Description {
	/**
	 * Returns the value of the '<em><b>Expression</b></em>' attribute.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Expression</em>' attribute isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Expression</em>' attribute.
	 * @see #setExpression(String)
	 * @see org.sgt.coredef.CoredefPackage#getTextualDescription_Expression()
	 * @model dataType="org.sgt.coredef.Expression"
	 * @generated
	 */
	String getExpression();

	/**
	 * Sets the value of the '{@link org.sgt.coredef.TextualDescription#getExpression <em>Expression</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Expression</em>' attribute.
	 * @see #getExpression()
	 * @generated
	 */
	void setExpression(String value);

	/**
	 * Returns the value of the '<em><b>Language</b></em>' attribute.
	 * The default value is <code>"textual"</code>.
	 * <!-- begin-user-doc -->
	 * <p>
	 * If the meaning of the '<em>Language</em>' attribute isn't clear,
	 * there really should be more of a description here...
	 * </p>
	 * <!-- end-user-doc -->
	 * @return the value of the '<em>Language</em>' attribute.
	 * @see #setLanguage(String)
	 * @see org.sgt.coredef.CoredefPackage#getTextualDescription_Language()
	 * @model default="textual"
	 * @generated
	 */
	String getLanguage();

	/**
	 * Sets the value of the '{@link org.sgt.coredef.TextualDescription#getLanguage <em>Language</em>}' attribute.
	 * <!-- begin-user-doc -->
	 * <!-- end-user-doc -->
	 * @param value the new value of the '<em>Language</em>' attribute.
	 * @see #getLanguage()
	 * @generated
	 */
	void setLanguage(String value);

} // TextualDescription
